Home / 14,047.72-21,071.42-5,725.78

Finding the Fourth Proportional to 14,047.72, 21,071.42 and 5,725.78

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Solution

The fourth proportional to 14,047.72, 21,071.42 and 5,725.78 is: 8,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.72 : 21,071.42 = 5,725.78 : x
  2. Step 2: Convert to fraction form
    14,047.72/21,071.42 = 5,725.78/x
  3. Step 3: Cross multiply
    14,047.72x = 21,071.42 × 5,725.78
  4. Step 4: Simplify right side
    14,047.72x = 120,650,315.21
  5. Step 5: Solve for x
    x = 120,650,315.21/14,047.72
  6. Step 6: Final answer
    x = 8,588.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.